List of Articles ریخت سنجی

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  1 - Morphotectonic Analysis of Nar Anticline (NW Lamerd)
  سید احمد Alavi رضا Derakhshani علی Haghshenas
  The study area in terms of geological division is located in Zagros foldthrust belt. Inthe present study, the following quantitative and qualitative methods ofgeomorphology and structural geology were used together. Aerial photos, satelliteimages, geological and topogra More

  The study area in terms of geological division is located in Zagros foldthrust belt. Inthe present study, the following quantitative and qualitative methods ofgeomorphology and structural geology were used together. Aerial photos, satelliteimages, geological and topographical maps were studied and interpreted. Severalmorphometric indices including facet%, sinuosity of mountain front (Smf), V ratio andratio of valley floor width to valley height (Vf) were calculated. Isobase line map aswell as lineament map and three maps of isofracture anomaly, lineament densityanomaly and lineament intersection intensity anomaly were plotted. Based on theabove mentioned analyses and presence of special morphotectonic features such as:linear valley, deflected streams, fault scarps, water springs, elongated alluvial fans anddrainage basins, tectonically the study area is too active. Due to the deformation of Naranticline (Z shaped), it may be attributed to the presence of a N-S basement or blindfault. This fault can also make different anomalies in drainage patterns, streamdirections and lineaments. Manuscript profile
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  2 - Allometric Growth Patterns and Morphological Development of the Common Bream (Abramis brama) During Early Development Under Cultural Condition
  Mohammad Reza Sahraein Soheil Eagderi Arash Zibaee Gholam Reza Rafiee Reza Khomeirani
  Inroduction & Objective: Early development and allometric growth pattern is an important feature during early development of fishes that are related to their priorities for increasing survival and adaptation to environmental factors. Hence, this research was conducted t More

  Inroduction & Objective: Early development and allometric growth pattern is an important feature during early development of fishes that are related to their priorities for increasing survival and adaptation to environmental factors. Hence, this research was conducted to study the allometric growth patterns and morphological development of common bream (Abramis brama) during its early development from hatching upto 60 days post hatching (dph)under cultural condition.Materials and Methods: For this purpose common bream larvae were reared for two months until fingerling stage. The larvae were sampled from hatching upto 60 day post hatching (dph). Then Morphometric parameters obtained from 2D pictures of specimens using the software ImageJ and allometric growth pattern was calculated as a power function of total length using non-transformed data: Y=axbResults:The results showed that the early development of this species can be divided into four stages based on their allometric growth patterns and development of morphological characteristics. Stage I or larval stage is occurred from hatching upto 6 dph and during this stage, the inflexion points of the tail length and head and body depths are occurred at 5 and 6 dph, respectively. Second developmental stage or the post larval stage (6-18 dph), includes inflexion points of the total weight at 11dph, head length and eye diameter at 14dph and, the caudal peduncle depth at 18 dph. Stages III or per-juvenile stage (18-35 dph) consists the inflexion points of the snout and trunk lengths at 25 and 35 dph, respectively. Forth developmental stage is started from 35 dph upward and at this stage fish is obtained the miniature shape of its adult. ConclusionThe results revealed that priorities of the common bream during early developmental stages include development of the swimming ability, respiration structures, and sense organssituated in the head region and then feeding apparatus that may be in agreement with its ecological shifts during its ontogeny. Manuscript profile
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  3 - Evaluation of Multi-Enzyme Effect on Performance and Intestinal Morphological of Broiler Chickens Fed by Tomato Pomace
  Hasan Lotfi Bahman Navidshad MuhammadReza Assadi Farzad MirzaeiAghjehgheshlagh Reza Behmaram Afsaneh DadashiOrange ali Kalantari-Hesari
  AbstractInroduction & Objective: Tomato pulp is one of the by-products of the food industry that is produced in large quantities in Iran and due to the high percentage of fiber, its level of consumption in broiler diets may be limited.Therefore, the aim of this stud More

  AbstractInroduction & Objective: Tomato pulp is one of the by-products of the food industry that is produced in large quantities in Iran and due to the high percentage of fiber, its level of consumption in broiler diets may be limited.Therefore, the aim of this study was to improve the nutritional value of tomato pulp using a multivalent enzyme in the nutrition of broiler chickens.Materials and Methods: In this experimentthebroiler chicks fed diets without tomato pulp and enzyme (control), containing 5% tomato pomace without enzyme, containing 5% tomato pomace and 0.2% multi-enzyme, containing 10% tomato pomace without enzyme and 10% tomato pomace and 0.2% multi-enzyme for 42 days.Results: During the Finisher and the whole the experiment period, chicks fed different levels of tomato pomace with enzyme had a higher weight gain than enzyme free comparable diets (P<0.05). There was an increase in the the empty gizzard weight in chickens fed 5% tomato pomace with enzyme compared to the control group and also the 10% tomato pomace and enzyme group (P <0.05).Serum lipids including cholesterol, triglyceride and LDL were not affected by the experimental diets, but diets containing tomato pomace had higher HDL concentration than the control group (P <0.05). The villi height of jejunum and ileum of chicks fed 5% tomato pomace with enzyme was significantly higher than other treatments, but highest amount of villi of jejunum and ileum was observed in the group fed 5% tomato pomace without enzym. (P <0.05).The 10% level of tomato pomace reduced feed cost per unit of live weight gain by 5%.Conclusion: The results of this study showed a positive effect of multi-enzyme use on increasing the nutritional value of tomato pomace up to 10% of broiler diet.. Manuscript profile
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  4 - A Study Diversity of Morphological Characters of Brown Trout (Salmo trutta fario) in Tajan River and Babolrud River in Mazandaran Province
  S. Vatandost Gh.H. Vosoghi Sh.A. Nezami A. Abdoli A. Matin far
  The study was conducted to determine suitable characters for separating brown trout (Salmo trutta fario) populations from Tajan River and Babolrud River in autumn 2006. Using electrofishing, one hundred two specimens were collected in two rivers (forty one from Shirinru More

  The study was conducted to determine suitable characters for separating brown trout (Salmo trutta fario) populations from Tajan River and Babolrud River in autumn 2006. Using electrofishing, one hundred two specimens were collected in two rivers (forty one from Shirinrud, thirty one from Ashekrud, thirty from Kelyareh). Twenty nine morphometric and seven meristic characters were analysed. Using PCA, the best separating characters of populations were determined. Among the morphometric characters, six factors accounted for about 79% of variation within individuals of the three populations including: head width, inter orbital length, predorsal length, pecto-ventral length, mandibular length, total length, head length , eye diameter , pectoral fin length, head depth, postdorsal length , post ventral length ,caudal peduncle length, post anal Length, Adipose fin length. In the case of meristic characters, three factors accounted for 60% of variation within populations including: anal fin ray, gill rackers, dorsal fin ray. The results showed that meristic characters are more important than morphometric characters in serparation of populations. Manuscript profile
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  5 - Survey on morphological diversity of European chub (Squalius cephalus) in Touji head branchof Talar River in Mazandaran Province.
  M. H. Gorjian Arabi M. Roohi M. Kazemian S. Vatandust A. Janbazi
      In this study from august 2008 to august 2009 through 12 sampling 298 Squalius cephalus were caught from mazandaran talar river. 123 of them were male, 115 of them female and sex of 60 specimen could not detect. In this research 26 morphometric attrib More

      In this study from august 2008 to august 2009 through 12 sampling 298 Squalius cephalus were caught from mazandaran talar river. 123 of them were male, 115 of them female and sex of 60 specimen could not detect. In this research 26 morphometric attribute and 8 meristic attribute were examined. According to the obtained results average coefficient of variation in the morphometric and meristic speciality in male Squalius cephalus respectively were 28/24 and  96/6 and in female 97/35 and  66/7 also in 26 morphometric attribute and 8 meristic attribute in the male and female Squalius cephalus none significant (P>05/0). Also according to the obtained results by aid of analysis method to main factors (PCA) two groups have relatively good overlap. There is a strong correlation among the length and weight of male(r2=981/0) and female (r2=983/0)  gender of Squalius cephalus in mazandaran talar  river. Manuscript profile
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  6 - بررسی و مقایسه خصوصیات ریخت سنجی و شمارشی ماهی گوازیم دم‌رشته‌ای (Nemipterus japonicus (Bloch,1791)) در سواحل جزیره خارک و بوشهر
  زهرا صادق پناهی عبدالرحیم پذیرا مژگان خدادادی
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  7 - Three species of sheath nematodes from Iran
  علی اسکندری اکبر کارگربیده ابراهیم پورجم
  Summary-During the taxonomic studies on the nematodes of the family Criconematidae in Iran, three species of sheath nematodes, including Hemicriconemoides strictathecatus, Hemicycliophora lutosa and H. sturhani were identified from soil and root samples collected from d More

  Summary-During the taxonomic studies on the nematodes of the family Criconematidae in Iran, three species of sheath nematodes, including Hemicriconemoides strictathecatus, Hemicycliophora lutosa and H. sturhani were identified from soil and root samples collected from different fields, orchards, forests and pastures. The first species was found in rhizosphere of date palm in Kerman, walnut in Ghazvin and citrus in Bandar Abbas and Kerman; the second from soil around the roots of millet in Asalem forest and the third one from soil around the roots of wild garlic in Damghan and willow in Shahrood were collected Manuscript profile